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Message-ID: <56D5C6B1.6040005@ti.com>
Date: Tue, 1 Mar 2016 18:43:29 +0200
From: Peter Ujfalusi <peter.ujfalusi@...com>
To: Paul Walmsley <paul@...an.com>
CC: Tony Lindgren <tony@...mide.com>, <robh+dt@...nel.org>,
Tero Kristo <t-kristo@...com>, <linux-omap@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 10/11] ARM: DRA7: hwmod: Add data for McASP1/2/4/5/6/7/8
Hi Paul,
On 03/01/2016 11:11 AM, Paul Walmsley wrote:
> Hi Péter
>
> A few questions:
>
> On Thu, 25 Feb 2016, Peter Ujfalusi wrote:
>
>> Add missing data for all McASP ports for the dra7 family
>>
>> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@...com>
>
> 1. The patch doesn't set the HWMOD_OPT_CLKS_NEEDED flag for McASP1 and 2,
> but does set it for McASP4-8. Could you please confirm that this is
> intentional, and if so, why?
All should have the HWMOD_OPT_CLKS_NEEDED as both fclk and ahclkx is treated
as functional clock and needs to be available in order to be able to access
McASP registers.
Sorry, I can only test McASP3 and somehow I overlooked this when copy-pasting
the data.
> 2. The patch sets HWMOD_SWSUP_SIDLE for McASP1 and 2, but doesn't set it
> for McASP4-8. Could you please confirm that this is intentional, and if
> so, why? The descriptions of the MODULEMODE fields in SPRUHZ6 look
> identical.
I need to confirm this, but all McASP should have the same set of flags.
>
> 3. Can McASP1,2,3 bus-master onto the L3? If so, then there should be
> "dra7xx_mcasp1__l3_main_1"-style links to indicate this.
I need to check this, but I don't think McASP1,2,3 can be bus-master onto L3.
>
>
> - Paul
I can resend the series next week as I'm out of office this week.
--
Péter
>
>> ---
>> arch/arm/mach-omap2/omap_hwmod_7xx_data.c | 235 ++++++++++++++++++++++++++++++
>> 1 file changed, 235 insertions(+)
>>
>> diff --git a/arch/arm/mach-omap2/omap_hwmod_7xx_data.c b/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
>> index 3953ad031c43..3bd067afa702 100644
>> --- a/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
>> +++ b/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
>> @@ -1374,6 +1374,50 @@ static struct omap_hwmod_class dra7xx_mcasp_hwmod_class = {
>> .sysc = &dra7xx_mcasp_sysc,
>> };
>>
>> +/* mcasp1 */
>> +static struct omap_hwmod_opt_clk mcasp1_opt_clks[] = {
>> + { .role = "ahclkx", .clk = "mcasp1_ahclkx_mux" },
>> +};
>> +
>> +static struct omap_hwmod dra7xx_mcasp1_hwmod = {
>> + .name = "mcasp1",
>> + .class = &dra7xx_mcasp_hwmod_class,
>> + .clkdm_name = "ipu_clkdm",
>> + .main_clk = "mcasp1_aux_gfclk_mux",
>> + .flags = HWMOD_SWSUP_SIDLE,
>> + .prcm = {
>> + .omap4 = {
>> + .clkctrl_offs = DRA7XX_CM_IPU_MCASP1_CLKCTRL_OFFSET,
>> + .context_offs = DRA7XX_RM_IPU_MCASP1_CONTEXT_OFFSET,
>> + .modulemode = MODULEMODE_SWCTRL,
>> + },
>> + },
>> + .opt_clks = mcasp1_opt_clks,
>> + .opt_clks_cnt = ARRAY_SIZE(mcasp1_opt_clks),
>> +};
>> +
>> +/* mcasp2 */
>> +static struct omap_hwmod_opt_clk mcasp2_opt_clks[] = {
>> + { .role = "ahclkx", .clk = "mcasp2_ahclkx_mux" },
>> +};
>> +
>> +static struct omap_hwmod dra7xx_mcasp2_hwmod = {
>> + .name = "mcasp2",
>> + .class = &dra7xx_mcasp_hwmod_class,
>> + .clkdm_name = "l4per2_clkdm",
>> + .main_clk = "mcasp2_aux_gfclk_mux",
>> + .flags = HWMOD_SWSUP_SIDLE,
>> + .prcm = {
>> + .omap4 = {
>> + .clkctrl_offs = DRA7XX_CM_L4PER2_MCASP2_CLKCTRL_OFFSET,
>> + .context_offs = DRA7XX_RM_L4PER2_MCASP2_CONTEXT_OFFSET,
>> + .modulemode = MODULEMODE_SWCTRL,
>> + },
>> + },
>> + .opt_clks = mcasp2_opt_clks,
>> + .opt_clks_cnt = ARRAY_SIZE(mcasp2_opt_clks),
>> +};
>> +
>> /* mcasp3 */
>> static struct omap_hwmod_opt_clk mcasp3_opt_clks[] = {
>> { .role = "ahclkx", .clk = "mcasp3_ahclkx_mux" },
>> @@ -1396,6 +1440,116 @@ static struct omap_hwmod dra7xx_mcasp3_hwmod = {
>> .opt_clks_cnt = ARRAY_SIZE(mcasp3_opt_clks),
>> };
>>
>> +/* mcasp4 */
>> +static struct omap_hwmod_opt_clk mcasp4_opt_clks[] = {
>> + { .role = "ahclkx", .clk = "mcasp4_ahclkx_mux" },
>> +};
>> +
>> +static struct omap_hwmod dra7xx_mcasp4_hwmod = {
>> + .name = "mcasp4",
>> + .class = &dra7xx_mcasp_hwmod_class,
>> + .clkdm_name = "l4per2_clkdm",
>> + .main_clk = "mcasp4_aux_gfclk_mux",
>> + .flags = HWMOD_OPT_CLKS_NEEDED,
>> + .prcm = {
>> + .omap4 = {
>> + .clkctrl_offs = DRA7XX_CM_L4PER2_MCASP4_CLKCTRL_OFFSET,
>> + .context_offs = DRA7XX_RM_L4PER2_MCASP4_CONTEXT_OFFSET,
>> + .modulemode = MODULEMODE_SWCTRL,
>> + },
>> + },
>> + .opt_clks = mcasp4_opt_clks,
>> + .opt_clks_cnt = ARRAY_SIZE(mcasp4_opt_clks),
>> +};
>> +
>> +/* mcasp5 */
>> +static struct omap_hwmod_opt_clk mcasp5_opt_clks[] = {
>> + { .role = "ahclkx", .clk = "mcasp5_ahclkx_mux" },
>> +};
>> +
>> +static struct omap_hwmod dra7xx_mcasp5_hwmod = {
>> + .name = "mcasp5",
>> + .class = &dra7xx_mcasp_hwmod_class,
>> + .clkdm_name = "l4per2_clkdm",
>> + .main_clk = "mcasp5_aux_gfclk_mux",
>> + .flags = HWMOD_OPT_CLKS_NEEDED,
>> + .prcm = {
>> + .omap4 = {
>> + .clkctrl_offs = DRA7XX_CM_L4PER2_MCASP5_CLKCTRL_OFFSET,
>> + .context_offs = DRA7XX_RM_L4PER2_MCASP5_CONTEXT_OFFSET,
>> + .modulemode = MODULEMODE_SWCTRL,
>> + },
>> + },
>> + .opt_clks = mcasp5_opt_clks,
>> + .opt_clks_cnt = ARRAY_SIZE(mcasp5_opt_clks),
>> +};
>> +
>> +/* mcasp6 */
>> +static struct omap_hwmod_opt_clk mcasp6_opt_clks[] = {
>> + { .role = "ahclkx", .clk = "mcasp6_ahclkx_mux" },
>> +};
>> +
>> +static struct omap_hwmod dra7xx_mcasp6_hwmod = {
>> + .name = "mcasp6",
>> + .class = &dra7xx_mcasp_hwmod_class,
>> + .clkdm_name = "l4per2_clkdm",
>> + .main_clk = "mcasp6_aux_gfclk_mux",
>> + .flags = HWMOD_OPT_CLKS_NEEDED,
>> + .prcm = {
>> + .omap4 = {
>> + .clkctrl_offs = DRA7XX_CM_L4PER2_MCASP6_CLKCTRL_OFFSET,
>> + .context_offs = DRA7XX_RM_L4PER2_MCASP6_CONTEXT_OFFSET,
>> + .modulemode = MODULEMODE_SWCTRL,
>> + },
>> + },
>> + .opt_clks = mcasp6_opt_clks,
>> + .opt_clks_cnt = ARRAY_SIZE(mcasp6_opt_clks),
>> +};
>> +
>> +/* mcasp7 */
>> +static struct omap_hwmod_opt_clk mcasp7_opt_clks[] = {
>> + { .role = "ahclkx", .clk = "mcasp7_ahclkx_mux" },
>> +};
>> +
>> +static struct omap_hwmod dra7xx_mcasp7_hwmod = {
>> + .name = "mcasp7",
>> + .class = &dra7xx_mcasp_hwmod_class,
>> + .clkdm_name = "l4per2_clkdm",
>> + .main_clk = "mcasp7_aux_gfclk_mux",
>> + .flags = HWMOD_OPT_CLKS_NEEDED,
>> + .prcm = {
>> + .omap4 = {
>> + .clkctrl_offs = DRA7XX_CM_L4PER2_MCASP7_CLKCTRL_OFFSET,
>> + .context_offs = DRA7XX_RM_L4PER2_MCASP7_CONTEXT_OFFSET,
>> + .modulemode = MODULEMODE_SWCTRL,
>> + },
>> + },
>> + .opt_clks = mcasp7_opt_clks,
>> + .opt_clks_cnt = ARRAY_SIZE(mcasp7_opt_clks),
>> +};
>> +
>> +/* mcasp8 */
>> +static struct omap_hwmod_opt_clk mcasp8_opt_clks[] = {
>> + { .role = "ahclkx", .clk = "mcasp8_ahclkx_mux" },
>> +};
>> +
>> +static struct omap_hwmod dra7xx_mcasp8_hwmod = {
>> + .name = "mcasp8",
>> + .class = &dra7xx_mcasp_hwmod_class,
>> + .clkdm_name = "l4per2_clkdm",
>> + .main_clk = "mcasp8_aux_gfclk_mux",
>> + .flags = HWMOD_OPT_CLKS_NEEDED,
>> + .prcm = {
>> + .omap4 = {
>> + .clkctrl_offs = DRA7XX_CM_L4PER2_MCASP8_CLKCTRL_OFFSET,
>> + .context_offs = DRA7XX_RM_L4PER2_MCASP8_CONTEXT_OFFSET,
>> + .modulemode = MODULEMODE_SWCTRL,
>> + },
>> + },
>> + .opt_clks = mcasp8_opt_clks,
>> + .opt_clks_cnt = ARRAY_SIZE(mcasp8_opt_clks),
>> +};
>> +
>> /*
>> * 'mmc' class
>> *
>> @@ -2703,6 +2857,38 @@ static struct omap_hwmod_ocp_if dra7xx_l3_main_1__hdmi = {
>> .user = OCP_USER_MPU | OCP_USER_SDMA,
>> };
>>
>> +/* l4_per2 -> mcasp1 */
>> +static struct omap_hwmod_ocp_if dra7xx_l4_per2__mcasp1 = {
>> + .master = &dra7xx_l4_per2_hwmod,
>> + .slave = &dra7xx_mcasp1_hwmod,
>> + .clk = "l4_root_clk_div",
>> + .user = OCP_USER_MPU | OCP_USER_SDMA,
>> +};
>> +
>> +/* l3_main_1 -> mcasp1 */
>> +static struct omap_hwmod_ocp_if dra7xx_l3_main_1__mcasp1 = {
>> + .master = &dra7xx_l3_main_1_hwmod,
>> + .slave = &dra7xx_mcasp1_hwmod,
>> + .clk = "l3_iclk_div",
>> + .user = OCP_USER_MPU | OCP_USER_SDMA,
>> +};
>> +
>> +/* l4_per2 -> mcasp2 */
>> +static struct omap_hwmod_ocp_if dra7xx_l4_per2__mcasp2 = {
>> + .master = &dra7xx_l4_per2_hwmod,
>> + .slave = &dra7xx_mcasp2_hwmod,
>> + .clk = "l4_root_clk_div",
>> + .user = OCP_USER_MPU | OCP_USER_SDMA,
>> +};
>> +
>> +/* l3_main_1 -> mcasp2 */
>> +static struct omap_hwmod_ocp_if dra7xx_l3_main_1__mcasp2 = {
>> + .master = &dra7xx_l3_main_1_hwmod,
>> + .slave = &dra7xx_mcasp2_hwmod,
>> + .clk = "l3_iclk_div",
>> + .user = OCP_USER_MPU | OCP_USER_SDMA,
>> +};
>> +
>> /* l4_per2 -> mcasp3 */
>> static struct omap_hwmod_ocp_if dra7xx_l4_per2__mcasp3 = {
>> .master = &dra7xx_l4_per2_hwmod,
>> @@ -2719,6 +2905,46 @@ static struct omap_hwmod_ocp_if dra7xx_l3_main_1__mcasp3 = {
>> .user = OCP_USER_MPU | OCP_USER_SDMA,
>> };
>>
>> +/* l4_per2 -> mcasp4 */
>> +static struct omap_hwmod_ocp_if dra7xx_l4_per2__mcasp4 = {
>> + .master = &dra7xx_l4_per2_hwmod,
>> + .slave = &dra7xx_mcasp4_hwmod,
>> + .clk = "l4_root_clk_div",
>> + .user = OCP_USER_MPU | OCP_USER_SDMA,
>> +};
>> +
>> +/* l4_per2 -> mcasp5 */
>> +static struct omap_hwmod_ocp_if dra7xx_l4_per2__mcasp5 = {
>> + .master = &dra7xx_l4_per2_hwmod,
>> + .slave = &dra7xx_mcasp5_hwmod,
>> + .clk = "l4_root_clk_div",
>> + .user = OCP_USER_MPU | OCP_USER_SDMA,
>> +};
>> +
>> +/* l4_per2 -> mcasp6 */
>> +static struct omap_hwmod_ocp_if dra7xx_l4_per2__mcasp6 = {
>> + .master = &dra7xx_l4_per2_hwmod,
>> + .slave = &dra7xx_mcasp6_hwmod,
>> + .clk = "l4_root_clk_div",
>> + .user = OCP_USER_MPU | OCP_USER_SDMA,
>> +};
>> +
>> +/* l4_per2 -> mcasp7 */
>> +static struct omap_hwmod_ocp_if dra7xx_l4_per2__mcasp7 = {
>> + .master = &dra7xx_l4_per2_hwmod,
>> + .slave = &dra7xx_mcasp7_hwmod,
>> + .clk = "l4_root_clk_div",
>> + .user = OCP_USER_MPU | OCP_USER_SDMA,
>> +};
>> +
>> +/* l4_per2 -> mcasp8 */
>> +static struct omap_hwmod_ocp_if dra7xx_l4_per2__mcasp8 = {
>> + .master = &dra7xx_l4_per2_hwmod,
>> + .slave = &dra7xx_mcasp8_hwmod,
>> + .clk = "l4_root_clk_div",
>> + .user = OCP_USER_MPU | OCP_USER_SDMA,
>> +};
>> +
>> /* l4_per1 -> elm */
>> static struct omap_hwmod_ocp_if dra7xx_l4_per1__elm = {
>> .master = &dra7xx_l4_per1_hwmod,
>> @@ -3461,8 +3687,17 @@ static struct omap_hwmod_ocp_if *dra7xx_hwmod_ocp_ifs[] __initdata = {
>> &dra7xx_l4_wkup__dcan1,
>> &dra7xx_l4_per2__dcan2,
>> &dra7xx_l4_per2__cpgmac0,
>> + &dra7xx_l4_per2__mcasp1,
>> + &dra7xx_l3_main_1__mcasp1,
>> + &dra7xx_l4_per2__mcasp2,
>> + &dra7xx_l3_main_1__mcasp2,
>> &dra7xx_l4_per2__mcasp3,
>> &dra7xx_l3_main_1__mcasp3,
>> + &dra7xx_l4_per2__mcasp4,
>> + &dra7xx_l4_per2__mcasp5,
>> + &dra7xx_l4_per2__mcasp6,
>> + &dra7xx_l4_per2__mcasp7,
>> + &dra7xx_l4_per2__mcasp8,
>> &dra7xx_gmac__mdio,
>> &dra7xx_l4_cfg__dma_system,
>> &dra7xx_l3_main_1__tpcc,
>> --
>> 2.7.1
>>
>
>
> - Paul
>
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